CVE-2026-46180

In the Linux kernel, the following vulnerability has been resolved: wifi: brcmfmac: Fix potential use-after-free issue when stopping watchdog task Watchdog task might end between send_sig() and kthread_stop() calls, what results in the use-after-free issue. Fix this by increasing watchdog task reference count before calling send_sig() and dropping it by switching to kthread_stop_put().

CVSS 3.1

7.8CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

EPSS

0.1% chance of exploitation in the next 30 days; higher than 3% of CVEs (scores of 2026-10-25)

CWE

CWE-416

Published

2026-05-28

Modified

2026-10-15

Record from

the NVD, synced 2026-10-19

Affected

• linux:linux_kernel

References

• https://git.kernel.org/stable/c/658d2e46c2e9a8eb9b80c5e803ce3c89885b3366
• https://git.kernel.org/stable/c/908b92231e1ded53e43fcfad5e0704d83e1b803c
• https://git.kernel.org/stable/c/a21f735fb1017ef89c6f9dbf4d799513b4e7bd5a
• https://git.kernel.org/stable/c/c623b63580880cc742255eaed3d79804c1b91143
• https://git.kernel.org/stable/c/d16827cb1d3936f7627d0da6044483f743ebde03

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